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gimp/app/dialogs/offset-dialog.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "dialogs-types.h"
#include "core/gimp.h"
#include "core/gimpchannel.h"
#include "core/gimpcontext.h"
#include "core/gimpdrawable.h"
#include "core/gimpdrawable-offset.h"
#include "core/gimpitem.h"
#include "core/gimplayer.h"
#include "core/gimplayermask.h"
#include "core/gimpimage.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpviewabledialog.h"
#include "offset-dialog.h"
#include "gimp-intl.h"
#define WRAP_AROUND (1 << 3)
#define FILL_MASK (GIMP_OFFSET_BACKGROUND | GIMP_OFFSET_TRANSPARENT)
typedef struct
{
GimpContext *context;
GtkWidget *dialog;
GtkWidget *off_se;
GimpOffsetType fill_type;
GimpImage *image;
} OffsetDialog;
/* local function prototypes */
static void offset_response (GtkWidget *widget,
gint response_id,
OffsetDialog *dialog);
static void offset_halfheight_callback (GtkWidget *widget,
OffsetDialog *dialog);
static void offset_dialog_free (OffsetDialog *dialog);
/* public functions */
GtkWidget *
offset_dialog_new (GimpDrawable *drawable,
GimpContext *context,
GtkWidget *parent)
{
GimpItem *item;
OffsetDialog *dialog;
GtkWidget *main_vbox;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *button;
GtkWidget *spinbutton;
GtkWidget *frame;
GtkWidget *radio_button;
GtkObject *adjustment;
const gchar *title = NULL;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (parent), NULL);
dialog = g_slice_new0 (OffsetDialog);
dialog->context = context;
dialog->fill_type = gimp_drawable_has_alpha (drawable) | WRAP_AROUND;
item = GIMP_ITEM (drawable);
dialog->image = gimp_item_get_image (item);
if (GIMP_IS_LAYER (drawable))
title = _("Offset Layer");
else if (GIMP_IS_LAYER_MASK (drawable))
title = _("Offset Layer Mask");
else if (GIMP_IS_CHANNEL (drawable))
title = _("Offset Channel");
else
g_warning ("%s: unexpected drawable type", G_STRFUNC);
dialog->dialog =
gimp_viewable_dialog_new (GIMP_VIEWABLE (drawable), context,
_("Offset"), "gimp-drawable-offset",
GIMP_STOCK_TOOL_MOVE,
title,
parent,
gimp_standard_help_func,
GIMP_HELP_LAYER_OFFSET,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
/* offset, used as a verb */
_("_Offset"), GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog->dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_window_set_resizable (GTK_WINDOW (dialog->dialog), FALSE);
g_object_weak_ref (G_OBJECT (dialog->dialog),
(GWeakNotify) offset_dialog_free, dialog);
g_signal_connect (dialog->dialog, "response",
G_CALLBACK (offset_response),
dialog);
main_vbox = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (dialog->dialog)->vbox),
main_vbox);
gtk_widget_show (main_vbox);
/* The offset frame */
frame = gimp_frame_new (_("Offset"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
hbox = gtk_hbox_new (0, FALSE);
gtk_container_add (GTK_CONTAINER (frame), hbox);
gtk_widget_show (hbox);
vbox = gtk_vbox_new (6, FALSE);
gtk_box_pack_start (GTK_BOX (hbox), vbox, FALSE, FALSE, 0);
gtk_widget_show (vbox);
spinbutton = gimp_spin_button_new (&adjustment,
1, 1, 1, 1, 10, 1,
1, 2);
gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), 10);
dialog->off_se = gimp_size_entry_new (1, GIMP_UNIT_PIXEL, "%a",
TRUE, TRUE, FALSE, 10,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
gtk_table_set_col_spacing (GTK_TABLE (dialog->off_se), 0, 4);
gtk_table_set_col_spacing (GTK_TABLE (dialog->off_se), 1, 4);
gtk_table_set_row_spacing (GTK_TABLE (dialog->off_se), 0, 2);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (dialog->off_se),
GTK_SPIN_BUTTON (spinbutton), NULL);
gtk_table_attach_defaults (GTK_TABLE (dialog->off_se), spinbutton,
1, 2, 0, 1);
gtk_widget_show (spinbutton);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (dialog->off_se),
_("_X:"), 0, 0, 0.0);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (dialog->off_se),
_("_Y:"), 1, 0, 0.0);
gtk_box_pack_start (GTK_BOX (vbox), dialog->off_se, FALSE, FALSE, 0);
gtk_widget_show (dialog->off_se);
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (dialog->off_se), GIMP_UNIT_PIXEL);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (dialog->off_se), 0,
dialog->image->xresolution, FALSE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (dialog->off_se), 1,
dialog->image->yresolution, FALSE);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (dialog->off_se), 0,
-item->width,
item->width);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (dialog->off_se), 1,
-item->height,
item->height);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (dialog->off_se), 0,
0, item->width);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (dialog->off_se), 1,
0, item->width);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (dialog->off_se), 0, 0);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (dialog->off_se), 1, 0);
button = gtk_button_new_with_mnemonic (_("Offset by x/_2, y/2"));
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (offset_halfheight_callback),
dialog);
/* The edge behavior frame */
frame = gimp_int_radio_group_new (TRUE, _("Edge Behavior"),
G_CALLBACK (gimp_radio_button_update),
&dialog->fill_type, dialog->fill_type,
_("_Wrap around"),
WRAP_AROUND, NULL,
_("Fill with _background color"),
GIMP_OFFSET_BACKGROUND, NULL,
_("Make _transparent"),
GIMP_OFFSET_TRANSPARENT, &radio_button,
NULL);
if (! gimp_drawable_has_alpha (drawable))
gtk_widget_set_sensitive (radio_button, FALSE);
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
return dialog->dialog;
}
/* private functions */
static void
offset_response (GtkWidget *widget,
gint response_id,
OffsetDialog *dialog)
{
if (response_id == GTK_RESPONSE_OK)
{
GimpImage *image = dialog->image;
if (image)
{
GimpDrawable *drawable = gimp_image_get_active_drawable (image);
gint offset_x;
gint offset_y;
offset_x =
RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (dialog->off_se),
0));
offset_y =
RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (dialog->off_se),
1));
gimp_drawable_offset (drawable,
dialog->context,
dialog->fill_type & WRAP_AROUND ? TRUE : FALSE,
dialog->fill_type & FILL_MASK,
offset_x, offset_y);
gimp_image_flush (image);
}
}
gtk_widget_destroy (dialog->dialog);
}
static void
offset_halfheight_callback (GtkWidget *widget,
OffsetDialog *dialog)
{
GimpImage *image = dialog->image;
if (image)
{
GimpItem *item = GIMP_ITEM (gimp_image_get_active_drawable (image));
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (dialog->off_se),
0, item->width / 2);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (dialog->off_se),
1, item->height / 2);
}
}
static void
offset_dialog_free (OffsetDialog *dialog)
{
g_slice_free (OffsetDialog, dialog);
}
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